http://articles.mercola.com/sites/articles/archive/2004/10/06/junk-food-fish.aspxFreshwater fish of the St. Lawrence River are turning their noses up to their usual menu of insects and crustaceans. Instead, they are feasting upon toxic-filled European quagga mussels. These mussels are referred to as the river's junk food. ResearchersenCommunityServer 2008.5 SP1 (Build: 31106.3070)